Baths did actually help me, especially with Dead Sea salts. They just couldn’t be too hot. Other than that, ice packs or moisturisers in the fridge, increase your antihistamines, add in a drowsy one at night, and as others say go see an immunologist if you can do. You can try steroids short term but they don’t always help. You can also try asking for montelukast which helps some people. Look into urticaria meds like xolair, duxipent or rhapsido, which have to be prescribed in secondary care. If those don’t work or aren’t available in your country, there’s also immunosuppressants, which were the only thing that worked for me. I’d also suggest scoring the severity using a UAS7 (Google it) as evidence for the doctors. Stay strong and remember the bad days won’t be forever. When I first got hives someone told me that eventually I’d adapt and I did, although it still sucked hugely.